This unit was fitted to Land Rover Discovery 3 2.7D vehicles to help the engine reach operating temperature quicker and provide faster warmup of the vehicle interior. They can be picked up very cheaply online; I paid £35 inc post for this unit.

They were also fitted to other vehicles such as VW Audi and Jaguar.

Diagram/pinout: [ Ссылка ]

[ Ссылка ]

Analogue to W-bus converter: [ Ссылка ]

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